well I can tell you this, I ran both in series and got 38C max load temps (Asus motherboard so I know they are off by 5C-8C) anyway, I unpluged one pump, and the temps has not changed, but again, I just don't trust the board temp readings. hell I even ran one pump (the other one is connected to the loop but not powered) at 7.5 volts and the temps seemed like it went up by 1C max.
thanks for all the help guys, I still would rather run two pumps just to be in the safe side tho so untill now I am still running them in series..
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